John Nesbitt
饰 Narrator (voice)
Matthew Boulton
饰 Dr. Edward Jenner (uncredited)
Helen Brown
饰 Mary Phipps (uncredited)
Harry Cording
饰 Village Dairyman (uncredited)
Fay Helm
饰 Mrs. Edward Jenner (uncredited)
Raymond Severn
饰 Little Jim Phipps (uncredited)
William Tannen
饰 Sarah's Sweetheart (uncredited)
